Results 31 to 40 of about 24,811,169 (263)

Wind Turbine Driving a PM Synchronous Generator Using Novel Recurrent Chebyshev Neural Network Control with the Ideal Learning Rate

open access: yesEnergies, 2016
A permanent magnet (PM) synchronous generator system driven by wind turbine (WT), connected with smart grid via AC-DC converter and DC-AC converter, are controlled by the novel recurrent Chebyshev neural network (NN) and amended particle swarm ...
Chih-Hong Lin
doaj   +1 more source

Spectral density reconstruction with Chebyshev polynomials. [PDF]

open access: yesPhysical Review E, 2021
Accurate calculations of the spectral density in a strongly correlated quantum many-body system are of fundamental importance to study its dynamics in the linear response regime.
J. Sobczyk, A. Roggero
semanticscholar   +1 more source

An efficient numerical algorithm for solving system of Lane–Emden type equations arising in engineering

open access: yesNonlinear Engineering, 2019
The purpose of this paper is to propose an efficient numerical method for solving system of Lane–Emden type equations using Chebyshev operational matrix method.
Öztürk Yalçın
doaj   +1 more source

Properties of the second-kind Chebyshev polynomials of complex variable

open access: yesResearches in Mathematics, 2020
We construct a system of functions biorthogonal with Chebyshev polynomials of the second kind on closed contours in the complex plane. Properties of these functions and sufficient conditions of expansion of analytic functions into series in Chebyshev ...
O.V. Veselovska   +2 more
doaj   +1 more source

Numerical Solution of Time-Fractional Diffusion-Wave Equations via Chebyshev Wavelets Collocation Method

open access: yesAdvances in Mathematical Physics, 2017
The second-kind Chebyshev wavelets collocation method is applied for solving a class of time-fractional diffusion-wave equation. Fractional integral formula of a single Chebyshev wavelet in the Riemann-Liouville sense is derived by means of shifted ...
Fengying Zhou, Xiaoyong Xu
doaj   +1 more source

Spectral functions and time evolution from the Chebyshev recursion [PDF]

open access: yes, 2015
We link linear prediction of Chebyshev and Fourier expansions to analytic continuation. We push the resolution in the Chebyshev-based computation of $T=0$ many-body spectral functions to a much higher precision by deriving a modified Chebyshev series ...
Justiniano, Jorge A.   +3 more
core   +2 more sources

Application of Chebyshev collocation method for solving two classes of non-classical parabolic PDEs

open access: yesAin Shams Engineering Journal, 2015
This article contributes a numerical scheme for finding approximate solutions of one-dimensional parabolic partial differential equations (PDEs) under non-classical boundary conditions. This scheme is based on the direct Chebyshev collocation method that
Emran Tohidi
doaj   +1 more source

An efficient image encryption scheme based on fractal Tromino and Chebyshev polynomial

open access: yesComplex & Intelligent Systems, 2021
The security of digital content during transmission and storage through insecure communication links and databases is a challenging issue in today's world.
Majid Khan   +3 more
semanticscholar   +1 more source

An approximate solution of the Blasius problem using spectral method

open access: yesPartial Differential Equations in Applied Mathematics
This paper aims at finding the numerical approximation of a classical Blasius flat plate problem using spectral collocation method. This technique is based on Chebyshev pseudospectral approach that involves the solution is approximated using Chebyshev ...
Zunera Shoukat   +6 more
doaj   +1 more source

Optimal designs for a class of nonlinear regression models [PDF]

open access: yes, 2004
For a broad class of nonlinear regression models we investigate the local E- and c-optimal design problem. It is demonstrated that in many cases the optimal designs with respect to these optimality criteria are supported at the Chebyshev points, which ...
Dette, Holger   +2 more
core   +2 more sources

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